baber/WOPTO huggingface dataset:
Patent GB-773708-A (GB)
Title: Improvements in or relating to backward travelling wave oscillator tubes
IPC: H01J23/28
Filed: 1955-03-25
Abstract: 773,708. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 25, 1955 [March 25, 1954], No. 8865/55. Class 39(1). In a backward wave oscillator tube a first electron beam interacts with a first wave component of negative phase velocity and a second electron beam travelling in the opposite direction to the first beam interacts with a wave-component of positive phase velocity so as to amplify it, the arrangement being such that the power output is maintained constant over a wide frequency band. The backward wave output power obtained from beam 4, Fig. 1, increases with the frequency while the forward wave output power obtained from beam 5 decreases when the frequency increases so that by suitable design these two effects compensate one another and the output power can be left constant over the broad electronic tuning band. In Fig. 1, 8 is an interdigital delay line 13 the output coaxial line feeder, 16 an absorbtive termination of colloidal graphite electronic tuning is achieved by varying the velocity of beam 4, by variable tap on battery 18 ; the velocity of beam 5, however, can be kept constant as its phase velocity frequency curve is almost a horizontal straight line, Fig. 3a (not shown) envelope 1, gun anodes 2<1>, 3<1>, collectors 6, 7 and delay line 8 are all earthed. The wave components utilised for interaction with the beams 4, 5 are a negative fundamental and a positive first or other space harmonic respectively. In a modification, Fig. 4, beam 4 interacts with a fundamental wave of negative phase velocity in the central zone of the line and two beams 5, 5<1> travelling in the reverse direction interact with a fundamental wave of positive phase velocity. The beams 5, 5<1> are disposed, at parts of the interdigital line removed from the longitudinal central plane at a position where the wave has a positive fundamental and a negative spatial harmonic component while beam 4 is disposed where there is a fundamental of negative phase velocity and is first spatial harmonic of positive phase velocity, the dispersion curve of the part of the line where beams 5, 5<1> pass being shown in Fig. 3B. The invention can also be applied to travelling wave tubes with crossed electric and magnetic fields, as described with reference to Figs. 5, 6 (not shown). Specifications 699,890 and 699,893 are referred to.
Patent GB-871304-A (GB)
Title: Mitre joints for hollow members
IPC: E06B3/972
Filed: 1959-03-16
Abstract: 871,304. Mitre joint for hollow members. GRAJECKI, U. March 16, 1959 [April 19, 1958], No. 8970/59. Class 20(2) [Also in Group XXVIII] Two members 1, 2 of hollow section, e.g. channel, are joined at right-angles by an angle member 3 enclosed in the members and secured in position by wedges 4, 6 driven transversely of the channels. The arms 5, 7 of the member 3 are tapered towards their junction with one another and also across their width. The angle member 15, Fig. 2, is of angle crosssection and the members 2 being joined have a closed cross-section, and openings 22 are formed in them for driving the wedges 19 longitudinally of the members 2. In a modification the wedges are driven by screws mounted on the angle member. The angle member and wedges may be curved in cross-section and the arms may be slit longitudinally.
Patent GB-540322-A (GB)
Title: Improvements in and relating to huts for use in camps, or for other purposes
IPC: E04B1/24
Filed: 1940-05-21
Abstract: 540,322. Huts. HASTING, C. A. May 21, 1940; No. 9025. [Class 20 (i)] A hut comprises upper and lower metal channel section bars 1, 2 of light construction defining the shape of the enclosure and interconnected by similar section uprights, and a cambered roof of composition-protected, metal-corrugated sheets 5 having overlapping joints at the centre and provided with edge angles 4 by which they are connected to the upper frame members. The centres of the roof sheets are connected by struts 6 to cross ties 3 which extend between the opposed upper frame members 1. The outside covering is of composition-protected, metal-corrugatedplates, and an inner lining of composition board 9 is secured to battens 10 secured to the outer covering so as to form hollow spaces in the walls. The floor is formed of spaced-apart asbestos-cement pipes 11 with an interfilling of concrete and the whole is covered with a layer of concrete.
Patent GB-493107-A (GB)
Title: Improvements in the suspension and mounting of internal combustion engines or other engine units
IPC: F16F15/08
Filed: 1937-03-30
Abstract: 493,107. Mountings for aircraftengines. JULIEN, M. F. A., and PAULSEN, J. F. March 30, 1937, Nos. 9097 and 9098. Convention dates, March 28, 1936 and Feb. 24, 1937. [Class 4] [Also in Groups XXVI and XXXI] An aircraft, vehicle, boat, &c. engine is mounted on resilient supports 9 longitudinally arranged in groups, on either side of the engine, each support comprising rubber 12 adhering to a part 10 rigid with the engine and a part 11 rigid with the aircraft &c. body, the surfaces of these parts being normal to a plane which includes an axis passing through the centre of gravity of the engine and parallel to the crankshaft axis. In a modified form, the groups extend around the crank-shaft axis and are situated at the longitudinal extremities of the engine. Fig. 8 shows a resilient support which comprises a plate 10a fixed to the engine by a bolt and sleeve 17 and vulcanized to rubber 12a also vulcanized to plates 11 fixed to a frame 6. One plate 11 may be bent over to engage the other at each side. The member 10a may be in the form of a flattened tube. In Fig. 14, the engine is mounted by the resilient means 9a on circular frames 6a in front and at the rear of the engine and concentric with the axis passing through the centre of gravity of the engine and parallel with the crank-shaft axis. In Fig. 23, the resilient support comprises a central plate 43 having teeth 48 penetrating recesses in the outer plates 45 with a rubber strip 46 between them. These supports are arranged to have great rigidity in the horizontal plane and to allow freedom of movement in the vertical plane. Fig. 26 shows a cylindrical support having inner and outer grooved cylinders 49, 51 with a rubber strip 52 between. Specification 493,119, [Group XXXII], is referred to. The Specification as open to inspection under Sect. 91 also describes an arrangement of supports for radial engines, in one of which the surfaces are at right-angles to the crank-shaft axis and in another the supports are formed by rings of rubber at each end of the engine, coaxial with the crank-shaft. In the case of radial engines, the group 1 of supports at one end of the engine is joined by rods or U-shaped members passing over the cylinders to the group at the other end of the engine. In another modification, the engine is mounted by groups of supports on rings which themselves are mounted by groups of supports on the aircraft body. This subject-matter does not appear in the Specification as accepted.
Patent GB-122985-A (GB)
Title: Improvements in and relating to the Impression Cylinders of Printing Machines.
Inventor: WINKLER CARL
IPC: B41F13/18
Filed: 1918-06-03
Abstract: 122,985. Winkler, C. June 3, 1918. Impression cylinders. -The longitudinal ribs or webs a of an impression cylinder particularly adapted for reciprocating - bed machines, are placed diametrically meeting each other at the centre or axis, and are formed or cast integral with the ends b and the peripheral wall d of the cylinder. The cylinder may have integral trunnions as shown, or the trunnions may be attached. Transverse ribs e may be provided.
Patent GB-1023807-A (GB)
Title: Improvements in radial cylinder hydraulic motors
IPC: F03C1/22
Filed: 1964-03-04
Abstract: 1,023,807. Hydraulic motors. OILGEAR CO. March 4, 1964 [April 8, 1963], No. 9144/64. Heading F1A. In a radial cylinder hydraulic motor, the pistons 47 are fitted with bearing shoes, which bear upon a ported sleeve 40 on a crank-pin and through which the motive fluid passes. The ports in the sleeve 40 serve as cylinder ports and valve ports 26, 27 are formed in the periphery of the crank-pin. Liquid under pressure is supplied to the cylinders 51, 52 via a passage 33, port 27 and ports 41, 42 in the sleeve 40 and the exhaust liquid is similarly conveyed from cylinders 54, 55 to a passage 34. The crank-pin 12 is free to rotate within the sleeve 40 to which is fixed a guide rail 87 on a plate 23, Fig. 1 (not shown). The rail 87 is free to move horizontally in a slot in a member 89 which is free to move vertically along guide rail 88 fixed to the motor casing. Hence the sleeve 40 follows the crank rotation without itself rotating. The cylinders have part-spherical ends and pivot on pins 66, Fig. 3 (not shown) mounted about the centre of the part-sphere. The cylinders also have a small second rocking movement transverse to the first to ensure adequate seating of the piston on the shoe. In alternative embodiments, the high pressure liquid may be supplied to the passage 34 and the cylinders may rotate around a fixed crankshaft.
Patent GB-397060-A (GB)
Title: Melting pot for stereotype casters
IPC: B41D3/00
Filed: 1933-03-27
Abstract: 397,060. Casting stereotype. MASCHINENFABRIK WINKLER, FALLERT, & CO. AKT.-GES., 35, Wylerringstrasse, Berne, Switzerland. March 27, 1933, No. 9160. Convention date, April 14, 1932. [Class 100 (ii).] In a melting-pot for stereotype casting- apparatus, of the kind in which the mould is pressed during casting against the valve-controlled outlet a from the pot and which is provided with a steel plate c at the outlet against which the cast plate is cut off by the valve from the contents of the pot, the plate is shrunk on to the walls of the pot at each side of the aperture so as to hold the walls of the pot together and prevent fractures. The plate is formed with undercut lateral projections e engaging corresponding surfaces on the pot, and after being shrunk on is secured by screws f to prevent longitudinal displacement.
Patent GB-668915-A (GB)
Title: Apparatus for the manufacture of slide fastener stringers
IPC: B21D53/50
Filed: 1950-04-14
Abstract: 668,915. Making sliding-clasp fasteners. SCOVILL MANUFACTURING CO.. April 14, 1950 [May 11, 1949], No. 9251/50. Classes 83 (ii) and 83 (iv). [Also in Group XXV] Sliding-clasp fastener elements are formed from preformed wire of " Y " section and secured to the tape in a machine comprising a slide 21, Fig. 8, reciprocated by an eccentric 22 acting on followers 23 and adapted to carry the end of the wire 24 past a shearing-knife 43 to shear blanks from the wire, a die element on the slider receiving the blanks and forming them into fastener elements and clamping members 47 to secure the element to the tape 26. The machine is shown diagrammatically in Fig. 8. The " Y " section wire is fed in steps through an opening 42 in the slider by a pair of feed rolls 25 driven by a ratchet-and-pawl 36 from an eccentric 40 on the driving-shaft 18. The tape is likewise fed upwardly through guides 46. As the slide 21 moves to the right in Fig. 9, a blank, sheared from the end by a stationary knife 43, drops into a die carried by the slider. During a period of dwell in the movement of the slider, a punch 45 descends to form the recess and projection on the element. The element is secured in the die during this operation by a holder 67 resiliently attached with some lostmotion to the punch 45. After the punch has lifted, the die carrying the element, moves forwardly to position the legs of the element astride the beaded edge of the tape where they are clamped by sliding hammers 47, Fig. 10, operated by cam surfaces 51, Fig. 8, on sliding bars 50 actuated by eccentrics 48. During this operation the element is held by a finger 61, Fig. 13, carried on an arm 60 and actuated by an eccentric. The tape then moves one step upwardly, lifting the element from the die and the slider returns to repeat the sequence of operations. The wire feed may be interrupted to provide a gap in the elements by a slider 54, Fig. 8, arranged to disengage the pawl 36 and actuated by solenoids 55 controlled by a counter 57 geared to the driving-shaft 18.
Patent GB-430317-A (GB)
Title: Improvements in and relating to ships' drives
IPC: B63H23/00
Filed: 1935-03-25
Abstract: 430,317. Power plant for ships. AKT.- GES. BROWN, BOVERI, & CIE, Baden, Switzerland. March 25, 1935, No. 9267. Convention date, March 23, 1934. [Class 114] A steam installation for ships comprising a number of complete units-a unit including generators, engines, transmission and auxiliary planthoused in watertight compartments, is arranged so that with more than two units, at least two complete units are housed in a common compartment. In a triple screw layout, the unit for the centre propeller is housed in a compartment A and the units for the outer propellers in a compartment B.
Patent GB-1092334-A (GB)
Title: Weighing scale indicating mechanism
IPC: G01G23/32
Filed: 1965-03-04
Abstract: 1,092,334. Optical projection apparatus. TOLEDO SCALE CORPORATION. March 4, 1965 [Oct. 5, 1964], No.9339/65. Heading G2J. Also in Division G1] An indicating mechanism for a weighing machine comprises a screen 27 on one place of which the weight of a load on the machine is projected from one of a number of adjacent and circumferentially arranged scales 25 on a cylindrical chart 24 by a projection system 26 movable parallel to the axis of the chart, the scales so representing different weight ranges and the projection system being so manually moved to that scale having the weight range which covers the load that automatic simultaneous rotation of the chart in accordance with the exact weight of the load will present to the projecting system 26 the exact weight indicia to be projected on to the screen 27. A handle 32 Fig. 1 (not shown) is manually operated to move the projection system 26 in accordance and simultaneously with weights which are added to the machine to offset the load, the chart being rotated by a rack and pinion mechanism which is actuated automatically in accordance with the exact weight of the load. The projection system 26 comprises a port which is mounted on a carriage (66) Fig. 4 (not shown) and which comprises a projection lens 52 and mirror 53 arranged within the cylinder forming the chart and a lamp 49 and condenser lens 51 arranged outside the chart. A stationary part of the projection system comprising mirrors 55, 56 and 57 is provided with an anti zoom lens 54 of such power that movement of the projection lens 52 is compensated for so that the magnification and focus of any indicia projected from the chart is maintained constant on the screen 27.
Patent GB-555959-A (GB)
Title: Apparatus for testing the signal to noise ratio of electrical apparatus
IPC: G01R29/26
Filed: 1942-07-06
Abstract: 555,959. Measuring signal/noise ratio. MANUFACTURING R.A.P., Ltd., and GOWAR, J. F. July 6, 1942, No. 9343. [Class 37] [Also in Group XL] Apparatus for testing the signal to noise ratio of a radio-receiver 1 comprises a signal wave generator 2 to which signal modulation can be applied by a modulator 3. The output from the receiver is fed to an output meter 10 arranged so that with terminals 5. 6 connected the meter has a lower value of sensitivity and with terminals 7, 8 connected it has a higher value of sensitivity, the ratio of the values being determined by a slide 9. A relay 12 is arranged on energization to remove the modulation from source 3 while a relay 13, on energization. changes meter 10 from the lower to the higher value of sensitivity. The relay coils are in series and repeatedly energized and de-energized, in synchronism by means of a square wave generator 11a connected across a source L1, L2, under control of a switch 15. A switch 16 enables permanent energization of both relays to be effected. To determine the value of input signal required to give a predetermined signal to noise ratio with a given output of the receiver, the meter sensitivity ratio is set to equal the desired signal-noise ratio. Then with switch 15 open modulation is applied, the generator is set at an estimated value, and the gain is adjusted to give the desired output. If the modulation is now removed and the meter set to the higher value of sensitivity, then if the signal-noise ratio is the same as the sensitivity ratio the meter reading should remain constant. Switch 15 is then closed to cause the repeated change-over due to relays 12 and 13. According as the estimated value is too high or too low, the needle will oscillate to a lower or a higher value respectively, and the generator and receiver gain control are adjusted together until the needle is stationary at the desired output value. The required value of the input signal is then read. The invention is applicable to other sound producing apparatus fed with a modulated carrier wave such as wired wireless and carrier telephone systems.
Patent GB-195972-A (GB)
Title: Improvements in or relating to liquid shock absorbers
IPC: F16F9/48
Filed: 1923-04-05
Abstract: 195,972. Lancia & Co. April 8, 1922. Addition to 191,006. Dash-pots.-In the liquid shock-absorbers described in the parent Specification, the chamber 10 is closed by a plug 5<11>, the stem 12 carrying the piston 11 is secured to the upper part 1<1> fixed to the frame, and the central duct 12<1> in the stem communicates with the chamber or space 9 by ports 23 in addition to the chambers 10, 14. On the sudden rising of the wheels, secured to the part 5, 5<1>, a braking action occurs on account of the liquid in the chamber 10 having to pass into the chamber 14 through a port 19<1> and valved apertures 15, and into the space 9 through the port 23. These ports are successively covered, as the wheel rises, by the partition 5<1> and so the resistance is increased. During the return movement produced by the reaction of the spring 6, the liquid in the chamber 14 must flow through the port 19<1> and the central duct 12<1> to the chamber 10 and into the space 9 through the ports 23 which are being uncovered.
Patent GB-991102-A (GB)
Title: Method of bailing
IPC: B65B13/26
Filed: 1964-03-05
Abstract: 991,102. Tying compressed bundles. FMC CORPORATION. March 5, 1964 [March 27, 1963], No. 9401/64. Heading B8C. Slots 22, 23 in the platens 20, 21 of a baling press permit a tie to be secured about a bale while it is compressed, and the knot or other securing means to be slipped round on to one of the faces engaged by the platens. The ties, which may be in the form of a flat strap, may be laced through the slots 22, 23 before or after the bundle is compressed.
Patent GB-1154137-A (GB)
Title: Treating Marine Algae.
Inventor: STEINMETZ CLAUS-PETER
IPC: C08B37/12
Filed: 1968-02-27
Abstract: 1,154,137. Treating algae. KRAUSSMAFFEI A.G. C. P. STEINMETZ and G. VOYE. 27 Feb., 1968, No. 9419/68. Heading C3U. Marine algae, e.g. gracilaria, to facilitate the extraction therefrom of jellylike products, e.g. agar, are subjected at a low temperature, e.g. below 25‹ C., to one or more two-stage alternating treatments in alkaline media followed by acid media, or vice-versa. The alkali treatment is preferably above pH 7À5 using salts, oxides or hydroxides of alkali metals, alkaline earth metals or ammonium, suitably using NaOH or KOH in the first step and a weaker base in subsequent steps. The acid treatment is suitably below pH 6À0 using a mineral and/or carboxylic acids or an acid salt thereof. A bleaching step, e.g. with H 2 O 2 , may also be included. In examples, gracilaria. is treated in succession with; (1) soda lye, lactic acid, Ca(OH 2 ) 2 /NaOH/ Mg(OH) 2  mixture and lactic acid, and (2) H 2 SO 4 , NaOH/KOH, NaH 2 PO 4  and three further H 2 SO 4 : NaOH/KOH treatments, the final alkali bath also containing H 2 O 2 . In each case the treated product is extracted with hot water to yield agar.
Patent GB-263662-A (GB)
Title: Improvements in or relating to miners' or like picks
IPC: B25D7/00
Filed: 1926-04-10
Abstract: 263,662. Haywood, W. April 10, 1926. Fixing by T-sockets with keys and like fixing devices.-In a miner'is pick with detachable blade the transverse opening of the T-socket a has a square or other shaped hole b in one of its side cheeks; the pick blade e with a correspondingly shaped projection d fitting the hole b is locked in position by a split key f, Fig. 5.
Patent GB-590757-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/22
Filed: 1945-04-17
Abstract: 590,757. Condensers. DUBILIER CONDENSER CO. (1925), Ltd. (Dubilier, W.). April 17, 1945, No. 9539. [Class 37] The spacing layers of paper or other suitable material in an electric condenser are impregnated with a wax-like hydroxylated castor oil, e.g. glyceryl trihydroxy stearate. The hydroxylated castor oil should be plasticised by the addition of a vegetable, mineral, or synthetic oil, e.g. castor oil or chlorinated diphenyl, of which the latter is to be preferred, due to its higher permittivity. The loss of dielectric strength of the dielectric material due to impregnation is restored by cooling off the condenser elements in a liquid mineral oil or mineral jelly.
Patent GB-479810-A (GB)
Title: Improvements in and relating to the preparation of dried protein products
Filed: 1937-04-05
Abstract: In drying protein-containing liquids such as milk, blood, egg yolk, or egg albumen, there is added prior to the drying a water-soluble surface-active material which is absorbed at the air/water interface in preference to the protein.  The surface-active materials used include saponin, bile salts, peptone, rennet, a sulphonated compound or an alkali metal laurate, and may be employed in small amounts, e.g. one part in 10000 of saponin or bile salts, one in 1000 of peptone and one in 5000 of rennet.  The protein may prior to drying be converted into an ionized compound, e.g. sodium caseinate, or sodium albumenate, by adding sodium hydroxide or other alkali, e.g. to form a 0,01 normal solution.ALSO:In drying protein-containing liquids such as milk, blood, egg yolk, or egg albumen, there is added to the liquid prior to the drying a water-soluble surface-active material which is absorbed at the air/water interface in preference to the protein.  The surface-active materials used include saponin, bile salts, peptone, rennet, a sulphonated compound or an alkali metal laurate, and may be employed in small amounts e.g. one part in 10000 of saponin or bile salts, one in 1000 of peptone and one in 5000 of rennet.  The protein may prior to drying be converted into an ionized compound, e.g. sodium caseinate or sodium albumenate, by adding sodium hydroxide or other alkali, e.g. to form a 0,01 normal solution.
Patent GB-472805-A (GB)
Title: Arrangement in compasses filled with a damping liquid
IPC: G01C17/12
Filed: 1937-04-06
Abstract: 472,805. Magnetic compasses. EKEBERG, H. R. April 6, 1937, No. 9707. Convention date, April 8, 1936. [Class 97 (ii)] In a liquid compass in which the needle 5 is carried by a partition 3 which divides the space between a transparent cover 1 and a resilient bottom 9 into two compartments communicating with each other through one or more openings 13 in the partition, the resilient bottom has an upwardly directed flange 12 surrounding an upwardly directed flange 11 on the partition 3 with a tight fit and secured to the inside of a downwardly directed flange 2 on the cover 1. The cover 1 may be made of celluloid, glass, or the material known under the Registered Trade Mark " Cellon." The bottom 9 may be a thin sheet' of '' Cellon " or aluminium plate. The partition 3, which is bulged upwardly, may be made of aluminium plate. A ring 16 of aluminium, " Cellon," or the material known under the Registered Trade Mark " Rhodoid " may be secured to the outside of the flange 2.